Update content to pull from CMS + missing links

[ypantig]

Images are ok to be hard coded for now, can be changed later in the process. But I suggest having the titles in this section to come from the CMS so they can be changed and customized by the client.

Also, links are missing from each element, which should also ideally be editable in the CMS.

best-spring-2019/themes/best-bc/front-page.php

Lines 81 to 86 in 52905a9

	<div class="involved-container">
	<div class="donate"><span class="involved-header">Donate</span></div>
	<div class="membership"><span class="involved-header">Membership</span></div>
	<div class="sponsor"><span class="involved-header">Sponsor</span></div>
	<div class="volunteer"><span class="involved-header">Volunteer</span></div>
	</div>

Images in the carousel should ideally come from the CMS as well.

best-spring-2019/themes/best-bc/front-page.php

Lines 90 to 96 in 52905a9

	<div class="main-carousel">
	<div class="carousel-cell"><img src="<?php echo get_template_directory_uri(); ?>/assets/images/city-logo.png" alt="city-logo" /></div>
	<div class="carousel-cell"><img src="<?php echo get_template_directory_uri(); ?>/assets/images/icbc-logo.png" alt="icbc-logo" /></div>
	<div class="carousel-cell"><img src="<?php echo get_template_directory_uri(); ?>/assets/images/coastal-logo.png" alt="coastal-logo" /></div>
	<div class="carousel-cell"><img src="<?php echo get_template_directory_uri(); ?>/assets/images/vancity-logo.png" alt="vancity-logo" /></div>
	<div class="carousel-cell"><img src="<?php echo get_template_directory_uri(); ?>/assets/images/century-logo-sm.png" alt="century-logo" /></div>
	</div><!-- End of Flickity -->